/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2025 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "usart.h"
#include "gpio.h"
#include "fsmc.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include <stdio.h>
#include "SYSTEM/delay/delay.h"
#include "BSP/LED/bsp_led.h"
#include "BSP/LCD/bsp_lcd.h"
#include "BSP/KEY/bsp_key.h"
#include "BSP/InternalFlash/bsp_internal_flash.h"
#include "Middlewares/IAP/iap.h"
/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */

/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/

/* USER CODE BEGIN PV */

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */

/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void) {

  /* USER CODE BEGIN 1 */
  uint16_t times = 0;
  uint8_t  key = 0;
  uint32_t oldcount = 0; /* 老的串口接收数据值 */
  uint32_t applen = 0;
  uint8_t  clearflag = 0;
  /* USER CODE END 1 */

  /* MCU Configuration--------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the system clock */
  SystemClock_Config();

  /* USER CODE BEGIN SysInit */
  delay_init(72);
  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_USART1_UART_Init();
  MX_FSMC_Init();
  /* USER CODE BEGIN 2 */
  LCD_init(); // LCD init
  printf("This is scm test!\r\n");
  lcd_show_string(30, 50, 200, 16, 16, "STM32", RED);
  lcd_show_string(30, 70, 200, 16, 16, "IAP TEST", RED);
  lcd_show_string(30, 90, 200, 16, 16, "SUMU", RED);
  lcd_show_string(30, 110, 200, 16, 16, "KEY_UP: Copy APP2FLASH!", RED);
  lcd_show_string(30, 130, 200, 16, 16, "KEY1: Run FLASH APP", RED);
  lcd_show_string(30, 150, 200, 16, 16, "KEY0: Run SRAM APP", RED);
  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
    if (USART_RX_STA)
    {
      if (oldcount == USART_RX_STA) /* 新周期内，没有接收到任何数据，认为本次数据接收完成 */
      {
        applen = USART_RX_STA;
        printf("[USART1]applen is %d, addr is 0x%x: [%02x %02x %02x %02x %02x %02x %02x %02x][%02x %02x %02x %02x]\r\n", 
                applen, (uint32_t)USART_RX_BUF, 
                USART_RX_BUF[0], USART_RX_BUF[1], USART_RX_BUF[2], USART_RX_BUF[3], 
                USART_RX_BUF[4], USART_RX_BUF[5], USART_RX_BUF[6], USART_RX_BUF[7],
                USART_RX_BUF[applen - 4], USART_RX_BUF[applen - 3],
                USART_RX_BUF[applen - 2], USART_RX_BUF[applen - 1]);
        USART_RX_STA = 0;
      }
      else
      {
        oldcount = USART_RX_STA;
      }
    }

    times++;
    HAL_Delay(100);
    if (times % 3 == 0)
    {
      LED0_TOGGLE();
      times = 0;

      if (clearflag)
      {
        clearflag--;

        if (clearflag == 0)
        {
          lcd_fill(30, 190, 240, 210 + 16, WHITE); /* 清除显示 */
        }
      }
    }

    key = key_scan(0);
    switch (key)
    {
      case KEY0_PRES:
        printf("KEY0_PRES press!\r\n");
        printf("Start executing the SRAM user code!!\r\n\r\n");
        delay_ms(10);

        if (((*(volatile uint32_t *)(0x20001000 + 4)) & 0xFF000000) == 0x20000000) /* 判断是否为0X20XXXXXX */
        {
          iap_load_app(0x20001000); /* SRAM地址 */
        }
        else
        {
          printf("Non-sram applications cannot be executed!\r\n");
          lcd_show_string(30, 190, 200, 16, 16, "Illegal SRAM APP!", BLUE);
        }

        clearflag = 7; /* 标志更新了显示,并且设置7*300ms后清除显示 */
        break;
      case KEY1_PRES:
        printf("KEY1_PRES press!\r\n");
        if (((*(volatile uint32_t *)(FLASH_APP1_ADDR + 4)) & 0xFF000000) ==
            0x08000000) /* 判断FLASH里面是否有APP,有的话执行 */
        {
          printf("Start executing the FLASH user code!!\r\n\r\n");
          delay_ms(10);
          iap_load_app(FLASH_APP1_ADDR); /* 执行FLASH APP代码 */
        }
        else
        {
          printf("There is no executable firmware!\r\n");
          lcd_show_string(30, 190, 200, 16, 16, "No APP!", BLUE);
        }

        clearflag = 7; /* 标志更新了显示,并且设置7*300ms后清除显示 */
        break;
      case KEY2_PRES:
        printf("KEY2_PRES press!\r\n");
        InternalFlash_Test();
        break;
      case WKUP_PRES:
        printf("WKUP_PRES press!\r\n");
        if (applen)
        {
          printf("Start updating the firmware...\r\n");
          lcd_show_string(30, 190, 200, 16, 16, "Copying APP2FLASH...", BLUE);

          if (((*(volatile uint32_t *)(0X20001000 + 4)) & 0xFF000000) == 0x08000000) /* 判断是否为0X08XXXXXX */
          {
            iap_write_appbin(FLASH_APP1_ADDR, USART_RX_BUF, applen); /* 更新FLASH代码 */
            lcd_show_string(30, 190, 200, 16, 16, "Copy APP Successed!!", BLUE);
            printf("The firmware update is complete!\r\n");
          }
          else
          {
            lcd_show_string(30, 190, 200, 16, 16, "Illegal FLASH APP!  ", BLUE);
            printf("Non-flash applications!\r\n");
          }
        }
        else
        {
          printf("There is no firmware available for update!\r\n");
          lcd_show_string(30, 190, 200, 16, 16, "No APP!", BLUE);
        }

        clearflag = 7; /* 标志更新了显示,并且设置7*300ms后清除显示 */
        break;
    }
  }
  /* USER CODE END 3 */
}

/**
  * @brief System Clock Configuration
  * @retval None
  */
void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

  /** Initializes the RCC Oscillators according to the specified parameters
  * in the RCC_OscInitTypeDef structure.
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }

  /** Initializes the CPU, AHB and APB buses clocks
  */
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
  {
    Error_Handler();
  }
}

/* USER CODE BEGIN 4 */

/* USER CODE END 4 */

/**
  * @brief  This function is executed in case of error occurrence.
  * @retval None
  */
void Error_Handler(void)
{
  /* USER CODE BEGIN Error_Handler_Debug */
  /* User can add his own implementation to report the HAL error return state */
  __disable_irq();
  while (1)
  {
  }
  /* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t *file, uint32_t line)
{
  /* USER CODE BEGIN 6 */
  /* User can add his own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */
